So me and my group just finished our first dungeon, and I play a cleric. I'm now at level 4, and I just upgraded to a prestige class that I fit, Church Inquisitor, because it seemed easy to acquire which was in approval with the DM. I have the travel, Inquisition, and Sun domain. The thing I'm interested in is that apparently Church Inquisitor gives a divine caster level every level instead of every other level. I don't quite understand the whole caster level and domain spells thing, and whether or not the Church Inquisitors ability to get caster levels faster stacks with the caster level increases of cleric. Sorry if this is a noob question.
So TL;DR:, can someone please give me a number of spells for each level for like the first 3 levels of church inquisitor, as well as domain spells? Thanks for any help.